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![[Used] Pt900 Aquamarine Ring A2.20ct D0.40ct 10.0g #12 CGL sorting included](http://koufuku.jp/cdn/shop/files/2000000054551_8.jpg?v=1742268292&width=480)
![[Used] PT900 Alexandrite Ring A0.22ct D0.50ct Central Gem Laboratory Sorting 6.7g #12](http://koufuku.jp/cdn/shop/files/2000000068572_2.jpg?v=1745901847&width=480)
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![[Used] PT900 Diamond Ring 0.613ct F SI2 Good Central Gem Laboratory Sorting 4.5g #11](http://koufuku.jp/cdn/shop/files/2000000012544_3.jpg?v=1750143322&width=480)
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![[Used] PT900 Burmese Ruby Ring R0.99ct D0.60ct #12 4.8g GIA Certificate of Origin](http://koufuku.jp/cdn/shop/files/2000000011691_3.jpg?v=1744949476&width=480)
![[Used] Pt900 Burmese unheated ruby ring R2.09ct D0.80ct GIA certificate of origin included, identification certificate 6.9g #12](http://koufuku.jp/cdn/shop/files/2000000022765_3.jpg?v=1744618053&width=480)
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![[Used] Pt900 Ruby Ring D0.15ct R0.17ct 10.2g #10.5](http://koufuku.jp/cdn/shop/files/13473_01_4ee0628a-3bc2-41b9-a004-efce4cc98be0.jpg?v=1743141413&width=480)
![[Used] PT900 Ruby Ring R0.52ct D0.51ct #8 5.5g](http://koufuku.jp/cdn/shop/files/70933_01.jpg?v=1751706081&width=480)
![[Used] PT900/K18 SPINEL Red Spinel Ring RS0.762ct D0.94ct CGL Sorting 7.4g #10.5](http://koufuku.jp/cdn/shop/files/2000000005935_3.jpg?v=1744858305&width=480)
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